Collapsible tube



W. C. HUNTOON.

COLLAPSIBLE TUBE. APPLICATION FILED JULY 24. 1919.

Patented Apr. 26, 1921.

Iii I WILLIAM G. HUNTOON, 0F PROVIDENCE, RHODE ISLAND.

COLLAPSIBLE TUBE.

Specification of Letters Patent. Patented Apr, 26, 1921.

Application filed July 2 1919. Serial No. 313,025.

To all whom it may c0ncem:

Be itknowii that I WILLIAM C. HUIN- TOON, a citizen of the United States, residing at Providence, in-the county of Proyldence and State of Rhoda Island, have 1nvented new and. useful Improvements in Collapsible Tubes, of which the following is a specification. i

This invention relates to certain new and useful improvements in collapsible tubes, and the primaryobject of the invention is to provide improved means for connecting the cap or closure to the neck of the tube so that the cap can be simply swung over the neck and then turned into threaded engagement therewith. I

The invention in'brief, proposes to form a ring or collar integralwith the neck and at the base thereof, so as to form a circular groove receiving the cap fastener, while the upper face of the ring or collar provides a seat for the cap thereby to provide a tight sealed joint so as to exclude air from the tube contents.

In the drawings:

Figure 1, is a fragmentary side elevation of the invention;

Fig. 2, is a similar view parts being broken away and in section, the cap being shown in open position and Fig. 3, is a section on line 3-3 of Fig. 1.

In proceeding in accordance with the present invention a tube 1, is provided having the usual frusto-conical end closin wall 2. The usual threaded neck 3 is formed with an integral collar or ring 4, which latter is spaced from the outer extremity of end wall 2, and is preferably grooved as indicated at 5. The usual cap 6, is formed with threads so as to have threaded engagements with the neck 3, and is provided with a groove 7 in which is received a'wire bail 8, the latter being hinged or pivoted at 9, to a second bail 10, the bail '10, being received in the groove 5. It will be understood that each of the bails is freely rotatable in the respective grooves 5 and 7. The ring 4, has its upper face formed to provide a seat for engagement with the base of the cap 6, so that the under face of the latter positively and completely engages throughout its area with the upper face of ring 4. In this manner the bail 10 is held out of contact with. the bottom of the cap 6, and the latter is thus provided with a seat that is independent of the end wall 2, and acts to enable a perfect sealing relation to be obtained betweenthe ring 4: and the cap. I

These tubes are formed in a single operation, that is to say they are extruded by means of suitable dies so that all of the parts of the tubes, excepting of course the cap and its fastener, are formed out of a single piece of metal, so as to provide a single unitary, structure. The ring orcollar thus functions in a dual manner, namely affording a seat for the cap and an anchor for the capisupporting or hing-ing means.

aving thus. described my invention, what I claim as new and deslre to secure by Letters Patent is:

In a collapsible tube having a threaded neck, a relatively thin metal ring integral with the neck and extending outwardly from the threads and spaced above the upper end closing wall of:the tube and forming a groove with said end closing wall, a cap threaded over the neck, a bail encircling the cap, and a bail hingedl connected to the first named bail and received in said groove, the upper face of the ring forming av seat for the rotatable capso as to seal the tube neck against the ingress of air.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

WILLIAM C. HUNTOON.

Witnesses:

Bnssrn P. Toomn', Josnrn A. MILLER. 

